CN110701314A - A self-closing valve - Google Patents

Abstract

The invention relates to the technical field of valves, and discloses a water-stopping self-closing valve, comprising a valve body, a main valve seat and a floating main valve core matched with the main valve seat are arranged in the valve body, and a valve outer wall is provided with a The water inlet above the main valve core and the water outlet located below the main valve core, the water outlet is connected with the tap water valve, the top of the valve inner wall is provided with an exhaust valve core frame, and the top of the exhaust valve core frame is provided with an exhaust that communicates with the outside world The valve seat, a floating exhaust valve core matched with the exhaust valve seat is arranged in the exhaust valve core frame, the main valve seat is provided with a capillary pipeline that communicates above and below the main valve seat, and the capillary pipeline is provided with a flow rate The regulating valve has the advantages of simple structure and low cost, and will not fail with long-term use; and the self-closing function of the present invention does not depend on the state of the faucet, and at the same time, the user can be reminded when the water is coming, so as to avoid the user's repeated inspection. Whether water is coming.

Description

A self-closing valve

technical field

The invention relates to the technical field of valves, in particular to a water-stop self-closing valve.

Background technique

Due to the shortage of water resources, time-limited water supply has been adopted in more and more places. The phenomenon of running water due to forgetting to turn off the faucet often happens, which not only wastes precious water resources, but also floods the houses. For many years, people have been working on the faucet (or valve) that shuts off when water is cut off to solve the problem of wasting water resources and flooding houses. However, most of the faucets or valves with self-closing water are not accepted by users due to their complicated structure or high price.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a self-closing valve when water is stopped, so as to solve the problems mentioned in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A water-stop self-closing valve, comprising a valve body, the valve body is provided with a main valve seat and a floating main valve core matched with the main valve seat, and the valve outer wall is provided with a water inlet located above the main valve core and a water inlet located at the top of the main valve core. The water outlet below the main valve core is connected with the tap water valve. The top of the valve inner wall is provided with an exhaust valve core frame, and the top of the exhaust valve core frame is provided with an exhaust valve seat that communicates with the outside world. A floating exhaust valve core matched with the exhaust valve seat is provided, the main valve seat is provided with a capillary pipeline that communicates above and below the main valve seat, and a flow regulating valve is arranged on the capillary pipeline.

Preferably, the flow regulating valve is specifically a needle valve.

Preferably, the flow adjustment range of the flow regulating valve is 2ml-5ml/min.

Preferably, a partition net is arranged in the valve body, and the partition net is located between the exhaust valve core frame and the water inlet.

Preferably, an extension tube is connected to the upper end of the capillary pipeline.

Preferably, both the floating main valve core and the floating exhaust valve core are spherical.

Compared with the prior art, the present invention provides a water-stopping self-closing valve, which has the following beneficial effects:

1. The present invention has a simple structure and low cost, does not use a spring as a pressure actuator, and is completely closed by the gravity of the valve core shaft itself, so the closing force is constant and will not fail with long-term use.

2. The self-closing function of the present invention does not depend on the state of the faucet, regardless of whether the faucet is on or off when the water is stopped, the self-closing function can be realized when water comes in.

3. The present invention will slowly drip water from the faucet outwards (flow rate 2-5ml/min) when water is coming, which can remind the user that water has come, and avoid the user to repeatedly check whether water is coming.

Description of drawings

Fig. 1 is the structural representation of the present invention;

FIG. 2 is a partial enlarged view of A in FIG. 1 .

In the figure: valve body 1; main valve seat 2; floating main valve core 3; water inlet 4; water outlet 5; tap water valve 6; exhaust valve core frame 7; exhaust valve seat 8; floating exhaust valve core 9; Capillary pipeline 10; flow regulating valve 11; separator 12; extension pipe 13.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 2 , the present invention discloses a water-stopping self-closing valve, comprising a valve body 1 , and a main valve seat 2 and a floating valve adapted to the main valve seat 2 are arranged in the valve body 1 . The main valve core 3, the outer wall of the valve body 1 is provided with a water inlet 4 located above the main valve core and a water outlet 5 located below the main valve core, the water outlet 5 is connected with the tap water valve 6, and the top of the inner wall of the valve body 1 is provided with an exhaust valve Core frame 7, the top of the exhaust valve core frame 7 is provided with an exhaust valve seat 8 that communicates with the outside world, and the exhaust valve core frame 7 is provided with a floating exhaust valve core 9 adapted to the exhaust valve seat 8. The valve seat 2 is provided with a capillary pipeline 10 that communicates above and below the main valve seat 2 , and a flow regulating valve 11 is arranged on the capillary pipeline 10 .

Specifically, the flow regulating valve 11 is a needle valve, which can realize precise regulation of the flow of the capillary pipeline 10 .

Specifically, the flow adjustment range of the flow control valve 11 is 2ml to 5ml/min. The user can adjust the flow control valve 11 according to the pressure of the tap water pipeline to ensure that the flow rate of the capillary pipeline 10 is appropriate. If it is lower, the flow regulating valve 11 can be adjusted appropriately. If the user lives on a higher floor, the flow regulating valve 11 can be released and increased.

Specifically, the valve body 1 is provided with a partition net 12, and the partition net 12 is located between the exhaust valve core frame 7 and the water inlet 4. The setting of the partition mesh 12 can avoid the floating main valve core 3 and the floating exhaust valve. The cores 9 interfere with each other.

Specifically, an extension pipe 13 is connected to the upper end of the capillary pipeline 10 to prevent the capillary pipeline 10 from being blocked by sand particles washed by tap water.

Specifically, the floating main valve core 3 and the floating exhaust valve core 9 are spherical.

When the present invention is in use, the valve is connected in series after the water meter is supplied by the user, and the valve core shaft is ensured to be installed vertically.

When the water is not stopped, the floating main valve core 3 and the floating exhaust valve core 9 are both in a floating state, the main valve seat 2 is in an open state, and the exhaust valve seat 8 is in a closed state, and water can be normally discharged from the faucet.

When the water is stopped, the floating main valve core 3 and the floating exhaust valve core 9 fall due to gravity, the main valve seat 2 is in a closed state, and the exhaust valve seat 8 is in an open state.

When water comes again, the water pressure makes the floating main valve core 3 close to the main valve seat 2 to achieve the effect of self-closing when water is stopped. At the same time, the exhaust valve seat 8 starts to exhaust. When the gas in the valve body 1 is completely exhausted, the floating exhaust The valve core 9 floats up, and the exhaust valve seat 8 is also closed. At this time, the water in the valve body 1 slowly flows from the capillary to the faucet, and the faucet drips to remind the user that water has come in. At this time, the user closes the faucet and waits for the main valve. After the space between the seat 2 and the faucet is filled with water, the pressure on both sides of the floating main valve core 3 is equal, and the floating main valve core 3 floats upwards to release the self-closing state.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The self-closing valve for water cut-off is characterized by comprising a valve body, wherein a main valve seat and a floating main valve core matched with the main valve seat are arranged in the valve body, a water inlet positioned above the main valve core and a water outlet positioned below the main valve core are arranged on the outer wall of the valve body, the water outlet is connected with a tap water valve, an exhaust valve core frame is arranged at the top of the inner wall of the valve body, an exhaust valve seat communicated with the outside is arranged at the top of the exhaust valve core frame, a floating exhaust valve core matched with the exhaust valve seat is arranged in the exhaust valve core frame, a capillary pipeline communicated with the upper part and the lower part of the main valve seat.

2. A water cut-off self-closing valve according to claim 1, wherein the flow control valve is a needle valve.

3. The self-closing valve for water cut-off as claimed in claim 1, wherein the flow regulating range of the flow regulating valve is 2 ml/min to 5 ml/min.

4. The self-closing valve for water cut-off of claim 1, wherein a screen is arranged in the valve body and is positioned between the exhaust valve core frame and the water inlet.

5. The self-closing valve for water cut-off as claimed in claim 1, wherein an extension pipe is connected to the upper end of the capillary pipe.

6. The self-closing valve for water cut-off of claim 1, wherein the floating main valve core and the floating exhaust valve core are both spherical.

Images